Vulnerability Development: RE: IIS 4.0 leaking files?

["Johnson, Michael" <Michael.Johnson () ASTStockplan com>]

cannot reproduct with html,cfm files... dont have any asp stuff running.

-----Original Message-----
From: hypoclear [mailto:hypoclear () jungle net]
Sent: Thursday, August 02, 2001 2:46 PM
To: vuln-dev () securityfocus com
Subject: IIS 4.0 leaking files?


I posted this to bugtraq, but I'm not sure if it 
will be posted, so I will post here too...

---
I recently viewed a web page on a server running 
IIS 4.0 and accidently appended a \
after the url. This to my suprise caused the page 
to download. This occured under
Netscape 4.6 (IE5 appears to ignore the \). I was 
wondering if anyone else could
confirm this behavior. It is not my server so I 
cannot do extensive testing on it, so I'm
bringing it to the community. The file that 
downloaded was a .html file, however I am
curious if appending a \ has the possibility of 
downloading .asp's or .cgi's. If that was
true it would be a definite security hole. Email 
me hypoclear () jungle net or the list with
any findings.

hypoclear